A cluster analysis of daily living skills in school aged children with autism spectrum disorder

Abstract

For individuals with autism spectrum disorder (ASD) daily living skills (DLS) fall below chronological age and have been linked to factors such as language. Given the impact of DLS on daily life, it is critical to gain a comprehensive understanding of DLS profiles in children to guide effective treatment. Using a large dataset from the Autism Speaks Autism Treatment Network, the current study sought to (1) examine whether there are subgroups of children with ASD defined by both their Vineland-II DLS scores and language abilities and (2) explore the relationship between internalizing and externalizing symptoms on subgroups using the Child Behavior Checklist. A five-cluster solution was found, but one group was subsequently dropped. Four clusters were examined: Low Language-Low DLS (n = 143); Low-Language High DLS (n = 170); High Language-Low DLS (n = 189); and High Language-High DLS (n = 203). The High Language-Low DLS group had significantly higher internalizing and externalizing symptoms as compared to the other groups. The results highlight the importance of targeting DLS in school-age children with ASD, especially for those with comorbid internalizing and externalizing symptom to ensure that the gap between age and functional DLS does not continue to widen.